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Better federation auto-discovery

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- Use the new status check endpoint at /_matrix/identity/api/v1
- Enforce DNS SRV existence before asking remote server for data
This commit is contained in:
Maxime Dor
2018-03-11 18:28:48 +01:00
parent c3385b38dc
commit 10f9126cb6
1 changed files with 24 additions and 38 deletions
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62
src/main/java/io/kamax/mxisd/matrix/IdentityServerUtils.java
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@@ -22,9 +22,6 @@ import java.util.Optional;
// FIXME placeholder, this must go in matrix-java-sdk for 1.0
public class IdentityServerUtils {
public static final String THREEPID_TEST_MEDIUM = "email";
public static final String THREEPID_TEST_ADDRESS = "mxisd-email-forever-unknown@forever-invalid.kamax.io";
private static Logger log = LoggerFactory.getLogger(IdentityServerUtils.class);
private static JsonParser parser = new JsonParser();
@@ -35,9 +32,7 @@ public class IdentityServerUtils {
try {
// FIXME use Apache HTTP client
HttpURLConnection rootSrvConn = (HttpURLConnection) new URL(
remote + "/_matrix/identity/api/v1/lookup?medium=" + THREEPID_TEST_MEDIUM + "&address=" + THREEPID_TEST_ADDRESS
).openConnection();
HttpURLConnection rootSrvConn = (HttpURLConnection) new URL(remote + "/_matrix/identity/api/v1/").openConnection();
// TODO turn this into a configuration property
rootSrvConn.setConnectTimeout(2000);
@@ -53,11 +48,6 @@ public class IdentityServerUtils {
return false;
}
if (el.getAsJsonObject().has("address")) {
log.debug("IS {} did not send back a JSON object for single 3PID lookup");
return false;
}
return true;
} catch (IllegalArgumentException | IOException | JsonParseException e) {
log.info("{} is not a usable Identity Server: {}", remote, e.getMessage());
@@ -84,39 +74,35 @@ public class IdentityServerUtils {
List<SRVRecord> srvRecords = new ArrayList<>();
Record[] records = new Lookup(lookupDns, Type.SRV).run();
if (records != null) {
for (Record record : records) {
log.info("Record: {}", record.toString());
if (record.getType() == Type.SRV) {
if (record instanceof SRVRecord) {
srvRecords.add((SRVRecord) record);
} else {
log.warn("We requested SRV records but we got {} instead!", record.getClass().getName());
}
} else {
log.warn("We request SRV type records but we got type #{} instead!", record.getType());
}
}
srvRecords.sort(Comparator.comparingInt(SRVRecord::getPriority));
if (records == null || records.length == 0) {
log.info("No SRV record for {}", lookupDns);
return Optional.empty();
}
for (SRVRecord srvRecord : srvRecords) {
String baseUrl = "https://" + srvRecord.getTarget().toString(true) + ":" + srvRecord.getPort();
for (Record record : records) {
log.info("Record: {}", record.toString());
if (record.getType() == Type.SRV) {
if (record instanceof SRVRecord) {
srvRecords.add((SRVRecord) record);
} else {
log.warn("We requested SRV records but we got {} instead!", record.getClass().getName());
}
} else {
log.warn("We request SRV type records but we got type #{} instead!", record.getType());
}
}
srvRecords.sort(Comparator.comparingInt(SRVRecord::getPriority));
for (SRVRecord srvRecord : srvRecords) {
String baseUrl = "https://" + srvRecord.getTarget().toString(true) + ":" + srvRecord.getPort();
if (isUsable(baseUrl)) {
log.info("Found Identity Server for domain {} at {}", domainOrUrl, baseUrl);
return Optional.of(baseUrl);
}
} else {
log.info("No SRV record for {}", lookupDns);
}
log.info("Performing basic lookup using domain name {}", domainOrUrl);
String baseUrl = "https://" + domainOrUrl;
if (isUsable(baseUrl)) {
log.info("Found Identity Server for domain {} at {}", domainOrUrl, baseUrl);
return Optional.of(baseUrl);
} else {
log.info("{} is not a usable Identity Server", baseUrl);
return Optional.empty();
}
log.info("Found no Identity server for domain {} at {}");
return Optional.empty();
} catch (TextParseException e) {
log.warn(domainOrUrl + " is not a valid domain name");
return Optional.empty();